USDA finalizes 45Z feedstock rule and carbon intensity calculator for biofuel crops
biodieselmagazine.comThe USDA has finalized its Regenerative Feedstock Rule, creating a voluntary pathway for farmers to earn value from regenerative agriculture practices through the 45Z clean fuel production credit. The rule covers corn, soybeans, sorghum, and spring canola, with a new Feedstock Carbon Intensity Calculator to quantify practices like cover crops and reduced tillage. This connects farm-level carbon reduction to the biofuel supply chain. Nearly 70% of corn and soybean farmers already use at least one regenerative practice, according to the USDA. The rule includes field-level carbon intensity tracking, mass balance chain-of-custody standards, and auditing requirements. A related executive order expands the USDA's Regenerative Agriculture Pilot Program, which has already completed over 67,000 conservation plans covering 49 million acres. For carbon market participants, this rule matters because it creates a standardized method to link agricultural practices to lower carbon fuel production. The calculator and verification framework could influence how biofuel feedstock carbon intensity is measured and traded under the 45Z credit, affecting project economics for renewable diesel and sustainable aviation fuel producers.
